Merge pull request #1608 from gtk-rs/dependabot/cargo/syn-2.0.91

build(deps): bump syn from 2.0.90 to 2.0.91

Author: sdroege

Cargo.lock

@@ -16,7 +16,7 @@ version.workspace = true
 heck = "0.5"
 proc-macro2 = "1.0"
 quote = "1.0"
-syn = { version = "2.0.90", features = ["full"] }
+syn = { version = "2.0.91", features = ["full"] }
 proc-macro-crate = "3.1"
 
 [lib]